Previous delegates represented the following companies:
| Adam Matthew Digital | Hindawi Publishing Corporation | Oxford University Press |
| aiHit | Hodder Education | Pharma Television |
| Bauer Consumer Media | Informa Healthcare | Pharma Ventures |
| BMJ Group | Informa Plc | Phorm UK |
| BNA International | Information World Review | Publishing Technology |
| Brill | Institute of Physics Publishing | Reed Business Information |
| British Geological Survey | IQ Marketing | RIBA Enterprises |
| Brownbook.net | John Wiley & Sons | Royal Society of Chemistry |
| BSI | Jordan Publishing | RPS Publishing |
| Calumet Ltd | Justis Publishing | SAGE Publications Ltd |
| Cambridge University Press | Kauppalehti Oy | Saratoga Ltd |
| Canadean Ltd | Kluwer Law | Science & Development Network |
| CDS Global | LexisNexis | SIIA |
| Cengage | Macrovision | Syracuse University |
| Chartered Quality Institute | Marklogic | Talis |
| CIMA | Marwyn Capital | Taxbriefs Ltd |
| Creative Content Ltd | Mimas The University of Manchester | Taylor & Francis Group |
| Den norske Bokdatabasen AS | MMT DIGITAL | The Guardian |
| Dorling Kindersley | Moreover | The IET |
| Egmont UK | Nature Publishing Group | The Lancet/ Reed Elsevier |
| Elsevier | Naughton Project Management | The National Archives |
| Emerald Group Publishing | Neftex Petroleum Consultants Ltd | Times Online |
| FreshNetworks | Netbenefit | UBM |
| Fumsi | Nielsen | Verisign |
| Future Publishing Ltd | Ninestars Information Technologies Ltd | VYOO |
| Future Science Group | OKS Group | Wiley Blackwell |
| GE Fabbri | One Agenda Ltd Sp ZOO | William Reed Business Media |
| Green Lemur | Outsell | Wolters Kluwer |